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A Highly Linear Dual-Stage Amplifier With Beyond 1.75-THz Gain-Bandwidth Product
/en/research/publications/a-highly-linear-dual-stage-amplifier-with-beyond-175-thz-gain-bandwidth-product
This work reports a multipurpose highly linear ultrawideband amplifier with a gain-bandwidth product (GBP) of 1.75 THz, the highest reported in any monolithic microwave integrated circuit (MMIC)…
783 nm wavelength stabilized DBR tapered diodelasers with a 7 W output power
/en/research/publications/783-nm-wavelength-stabilized-dbr-tapered-diodelasers-with-a-7-w-output-power-1
Wavelength stabilized distributed Bragg reflector (DBR) tapered diode lasers at 783 nm will be presented. The devices are based on GaAsP single quantum wells embedded in a large optical cavity…
Optimized diamond inverted nanocones for enhanced color center to fiber coupling
/en/research/publications/optimized-diamond-inverted-nanocones-for-enhanced-color-center-to-fiber-coupling
Nanostructures can be used for boosting the light outcoupling of color centers in diamond; however, the fiber coupling performance of these nanostructures is rarely investigated. Here, we use a…
Experimental investigation of optical feedback from periodically poled crystals for nonlinear frequency conversion
/en/research/publications/experimental-investigation-of-optical-feedback-from-periodically-poled-crystals-for-nonlinear-frequency-conversion
Crystals with nonlinear optical properties are widely used for frequency conversion of laser light. Thereby wavelength ranges beyond the laser’s emission spectrum can be reached [1] enabling new…
Miniaturized Master-Oscillator Power-Amplifier emitting at 626 nm
/en/research/publications/miniaturized-master-oscillator-power-amplifier-emitting-at-626-nm
Laser cooling of beryllium ions is a key enabler for quantum technologies such as e.g. optical clocks [1] or crystallization of highly charged ions [2] . It requires laser light at 313 nm, which…
Externally Wavelength-Stabilized Single Mode Lasers with 65% Conversion Efficiency and 50 pm Spectral Width at 1 W Output
/en/research/publications/externally-wavelength-stabilized-single-mode-lasers-with-65-conversion-efficiency-and-50-pm-spectral-width-at-1-w-output
Dense wavelength beam combining (DWBC) techniques can be used to image many diode lasers into a single beam with minimal degradation of beam quality M295% (at 95% power) and conversion efficiency…
Advances towards deep-UV light emitting diode technologies
/en/research/publications/advances-towards-deep-uv-light-emitting-diode-technologies
Driven by a wide range of applications, as shown in Fig. 1(a) , the development of AlGaN-based light emitting diodes in the deep ultraviolet spectral range (DUV-LEDs) has greatly intensified. In…
Experimental investigation of nanosecond pulsed tapered-waveguide lasers obtaining extremely high brightness values
/en/research/publications/experimental-investigation-of-nanosecond-pulsed-tapered-waveguide-lasers-obtaining-extremely-high-brightness-values
Diode lasers generating nanosecond-long optical pulses with high output powers and a good beam quality are used for various applications, such as light detection and ranging (LiDAR) systems needed…
DBR-tapered lasers at 783 nm with narrowband emission and output powers up to 7 W
/en/research/publications/dbr-tapered-lasers-at-783-nm-with-narrowband-emission-and-output-powers-up-to-7-w
Wavelength stabilized, high-power diode lasers in the spectral range around 783 nm are requested as e.g. pump lasers for Tm:YAG lasers and as excitation light sources for Raman spectroscopy. In…
Vertical Design Approach for Suppressing Power Saturation in GaAs-Based High-Power Diode Lasers
/en/research/publications/vertical-design-approach-for-suppressing-power-saturation-in-gaas-based-high-power-diode-lasers
High-power GaAs-based diode lasers are the most efficient light sources and thus used in many industrial applications. Higher peak output power (Popt) and efficiency (ηE) are sought to reduce…